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Finding the Fourth Proportional to 873,950.76, 1,311,079.88 and 361,614.40

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Solution

The fourth proportional to 873,950.76, 1,311,079.88 and 361,614.40 is: 542,485.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,950.76 : 1,311,079.88 = 361,614.40 : x
  2. Step 2: Convert to fraction form
    873,950.76/1,311,079.88 = 361,614.40/x
  3. Step 3: Cross multiply
    873,950.76x = 1,311,079.88 × 361,614.40
  4. Step 4: Simplify right side
    873,950.76x = 474,105,364,158.27
  5. Step 5: Solve for x
    x = 474,105,364,158.27/873,950.76
  6. Step 6: Final answer
    x = 542,485.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.